There was another example of where the Japs saved the lives of Jews during WW2. This one Shanghai, under Japanese occupation. Hitler went as far as sending his understudy, Himler, over to Japan to ‘help’ the Japanese terminate the 20,000 Jews who where holed up there after fleeing Europe. Japan told him to take a hike, and all of those Jews survived...but the Jews did leave China after the war - too much cultural difference.
https://en.wikipedia.org/wiki/Shanghai_Jewish_Refugees_Museum
I worked with a guy who was there as a child. Parents and siblings were on a ship that left Genoa and no other country including the US would let them off. China did and the family spent the war in Shanghai. Not much fun but they survived.
Wonder what they would think of our covid fiasco. All are gone now including him.
Dr. Abraham Kotsuji was involved in that. They did put the Jews in a ghetto, but refused to ship them eastward. Later, Dr. Kotsuji converted to Judaism, the first and perhaps only Japanese to ever do so, and took the name Abraham. He wrote his autobio: From Tokyo to Jerusalem.